disk brake conversion recommendation

[WileE]

What Kern said.

 

[PAPA_E]

So, first things first;

Your car did not come with a Dana originally, it should have a 8 3/4.

As to the 4 speed, the hole does look a little "fabricated" but to be honest they were not pretty from the factory, I'd have to see the inside w/o the carpet.

here is inside no carpet

 

[70chall440]

Don't see any butchery, it looks pretty stock to me.